The Best Reason To Share A Kiss (Or More) Tonight

While the quest for a female Viagra continues, the secret switch that turns on desire may be literally under your nose. Kissing is romantic, but that's not why it gives your sex life a lift. Male saliva contains testosterone, and a lingering lip lock turns out to be a reliable delivery system.

In both genders, smooching also floods the bloodstream with dopamine, which stimulates the same part of the brain as cocaine, for a natural high.

And if you need yet another reason to plant one on your beloved, pucker up for heart health: Research shows that regular kissing reduces cholesterol in men and women alike. (Keep the cholesterol love going with these 5 little tips to improve your cholesterol.)